 <template>
  <view class="content">
    <!-- 头部导航栏 -->
    <Navbar></Navbar>

    <!-- 主体部分 -->
    <scroll-view
      scroll-y
      class="main"
      @scrolltolower="getbottom"
      @refresherrefresh="onReRresherRefresh"
      refresher-enabled
      :refresher-triggered="refresherTriggered"
    >
      <!-- 广告区域 -->
      <Carousel :banners="banners" height="280rpx"></Carousel>

      <!-- 前台类目 -->
      <CateScroll :categoryHeadMutli="categoryHeadMutli"></CateScroll>

      <!-- 人气推荐 -->
      <view class="panel recommend">
        <view class="item" v-for="item in hotMutli" :key="item.id">
          <view class="title">
            {{ item.title }}<text>{{ item.alt }}</text>
          </view>
          <navigator
            hover-class="none"
            :url="`/pages/recommend/index?type=${item.type}`"
            class="cards"
          >
            <image
              mode="aspectFit"
              v-for="img in item.pictures"
              :key="img"
              :src="img"
            ></image>
          </navigator>
        </view>
      </view>

      <!-- 新鲜好物 -->
      <view class="panel fresh">
        <view class="title">
          新鲜好物
          <navigator
            hover-class="none"
            class="more"
            url="/pages/recommend/index?type=5"
            >更多</navigator
          >
        </view>
        <view class="cards">
          <navigator
            hover-class="none"
            :url="`/pages/goods/index?id=${item.id}`"
            v-for="item in homeNew"
            :key="item.id"
          >
            <image mode="aspectFit" :src="item.picture"></image>
            <view class="name">{{ item.name }}</view>
            <view class="price">
              <text class="small">¥</text>{{ item.price }}
            </view>
          </navigator>
        </view>
      </view>

      <!-- 热门品牌 -->
      <view class="panel brands">
        <view class="title">
          热门品牌
          <navigator hover-class="none" class="more" url="/pages/list/index"
            >更多</navigator
          >
        </view>
        <view class="cards">
          <navigator hover-class="none" url="/pages/goods/index">
            <image
              mode="aspectFit"
              src="http://static.botue.com/erabbit/static/uploads/brand_logo_1.jpg"
            ></image>
            <view class="name">小米</view>
            <view class="price">99元起</view>
          </navigator>
          <navigator hover-class="none" url="/pages/goods/index">
            <image
              mode="aspectFit"
              src="http://static.botue.com/erabbit/static/uploads/brand_logo_2.jpg"
            ></image>
            <view class="name">TCL</view>
            <view class="price">199起</view>
          </navigator>
          <navigator hover-class="none" url="/pages/goods/index">
            <image
              mode="aspectFit"
              src="http://static.botue.com/erabbit/static/uploads/brand_logo_3.jpg"
            ></image>
            <view class="name">饭小宝</view>
            <view class="price">9.9起</view>
          </navigator>
          <navigator hover-class="none" url="/pages/goods/index">
            <image
              mode="aspectFit"
              src="http://static.botue.com/erabbit/static/uploads/brand_logo_4.jpg"
            ></image>
            <view class="name">鳄鱼</view>
            <view class="price">299起</view>
          </navigator>
        </view>
      </view>

      <!-- 猜你喜欢 -->
      <Guess :homeGoodsGuessLike="carItems" :haveMore="haveMore"></Guess>
    </scroll-view>
  </view>
</template>
<script>
import Navbar from "./components/Navbar.vue";
import http from "@/utils/http";
import {
  getHomeBanner,
  getHomeCategoryHeadMutli,
  getHomeHotMutli,
  getHomeNew,
  getHomeGoodsGuessLike,
} from "@/http/home";
export default {
  components: { Navbar },
  data() {
    return {
      // 首页-广告区域
      banners: [],
      // 首页-前台类目-小程序
      categoryHeadMutli: [],
      // 人气推荐
      hotMutli: [],
      // 新鲜好物
      homeNew: [],

      // 猜你喜欢 请求参数
      // getCenShu: {
      //   page: 26,
      //   pageSize: 10,
      // },

      // 猜你喜欢 总页数
      // caiTotal: 1,
      // 猜你喜欢当前页码数据
      carItems: [],
      // 是否还有更多数据
      haveMore: true,
      // 控制下拉刷新的状态
      refresherTriggered: false,
    };
  },
  onLoad() {
    this.loadData();
  },
  methods: {
    loadData() {
      // getHomeBanner().then((result) => {
      //   this.banners = result.result;
      // });

      // getHomeCategoryHeadMutli().then((result) => {
      //   this.categoryHeadMutli = result.result;
      // });

      // getHomeHotMutli().then((result) => {
      //   this.hotMutli = result.result;
      // });

      // getHomeNew().then((result) => {
      //   this.homeNew = result.result;
      // });

      // 声明一个全局变量，存放 获取 猜你喜欢的参数
      this.getCenShu = {
        page: 1,
        pageSize: 50,
      };
      this.caiTotal = 1;
      return Promise.all([
        this.getHomeBanner(),
        this.getHomeCategoryHeadMutli(),
        this.getHomeHotMutli(),
        this.getHomeNew(),
        this.getHomeGoodsGuessLike(this.getCenShu),
      ]);

      // 猜你喜欢
      // getHomeGoodsGuessLike(this.getCenShu).then((result) => {
      //   this.caiTotal = result.result.pages;
      //   this.carItems = result.result.items;
      // });
    },
    async getHomeBanner() {
      const result = await getHomeBanner();
      this.banners = result.result;
    },
    async getHomeCategoryHeadMutli() {
      const result = await getHomeCategoryHeadMutli();
      this.categoryHeadMutli = result.result;
    },
    async getHomeHotMutli() {
      const result = await getHomeHotMutli();
      this.hotMutli = result.result;
    },
    async getHomeNew() {
      const result = await getHomeNew();
      this.homeNew = result.result;
    },
    async getHomeGoodsGuessLike(params) {
      const result = await getHomeGoodsGuessLike(params);
      this.caiTotal = result.result.pages;
      this.carItems = result.result.items;
    },
    // 加载到底部
    async getbottom() {
      if (this.getCenShu.page >= this.caiTotal) {
        uni.showToast({ title: "没有更多数据了", icon: "none" });
        this.haveMore = false;
      } else {
        // 发请求获取数据
        this.getCenShu.page++;
        const result = await getHomeGoodsGuessLike(this.getCenShu);
        this.carItems = [...this.carItems, ...result.result.items];
      }
    },
    // 下拉刷新
    async onReRresherRefresh() {
      console.log("下拉刷新了");
      // 设置 下拉刷新状态
      this.refresherTriggered = true;

      this.banners = [];
      this.categoryHeadMutli = [];
      this.hotMutli = [];
      this.homeNew = [];
      this.carItems = [];
      this.haveMore = true;

      console.log("1");
      await this.loadData();
      console.log("9");

      // 数据回来
      this.refresherTriggered = false;
    },
  },
};
</script>

<style lang="scss" scoped>
.content {
  height: 100vh;
  display: flex;
  flex-direction: column;
}
.main {
  flex: 1;
  overflow: hidden;
  background-color: #f7f7f8;
}
/* 公共面板 */
.panel {
  margin: 20rpx 20rpx 0;
  border-radius: 10rpx;
  background-color: #fff;
  .title {
    display: flex;
    align-items: center;
    padding: 24rpx 24rpx 0;
    font-size: 32rpx;
    color: #262626;
    position: relative;
    text {
      font-size: 24rpx;
      color: #7f7f7f;
      margin-left: 18rpx;
    }
  }
  .more {
    position: absolute;
    right: 24rpx;
    font-size: 26rpx;
    color: #7f7f7f;
  }
  .cards {
    display: flex;
  }
  .name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}
/* 推荐专区 */
.recommend {
  display: flex;
  flex-wrap: wrap;
  .item {
    display: flex;
    flex-direction: column;
    width: 50%;
    height: 254rpx;
    border-right: 1rpx solid #eee;
    border-top: 1rpx solid #eee;
    &:nth-child(2n) {
      border-right: 0 none;
    }
    &:nth-child(-n + 2) {
      border-top: 0 none;
    }
  }
  .cards {
    flex: 1;
    padding: 15rpx 20rpx;
    justify-content: space-between;
    image {
      width: 48%;
    }
  }
}

/* 新鲜好物 */
.fresh {
  min-height: 320rpx;
  .price {
    line-height: 1;
    text-align: left;
    font-size: 26rpx;
    color: #cf4444;
  }
  .small {
    font-size: 80%;
  }
}
.fresh .cards navigator,
.brands .cards navigator {
  width: 25%;
  padding: 15rpx 20rpx 20rpx;
  line-height: 1;
  text-align: center;
}
.fresh image,
.brands image {
  width: 126rpx;
  height: 126rpx;
}
.fresh .name,
.brands .name {
  margin: 20rpx 0 16rpx;
  font-size: 24rpx;
  color: #262626;
}
.brands {
  .price {
    font-size: 24rpx;
    color: #999;
  }
}
</style>